Engine.



I 0. E. OSBURN.

ENGINE. APPLICATION FILED 1118118, 1911.

997,694. Patented Ju1 11,1911.

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ENGINE.

APPLICATION TILED JAN.18, 1911. 997,694. Patented July 11,1911.

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UNTTE STATE PA T FFTQ ORREN' E. OSIBURN, 0F MOSIER, OREGON, ASSIGNOR 0F ONE-HALF TO GEDDES G. BANTA, OF THE DALLES, OREGON.

ENGINE.

To all whom it may concern:

Be it known that I, ORREN E. OSBURN, a citizen of the United States, residing at Mosier, in the county of VVasco and State of Oregon, have invented new and useful Improvements in Engines, of which the following is a specification.

The present invention provides a motor of the type embodying a plurality of cylinders each having a piston arranged to operate therein grouped about a frame and adapted to be operated by steam, compressed air or other suitable motive medium, the purpose being to supply an engine of compact form comprising a minimum number of parts and involving a simple construction and arrangement so that the parts are readily accessible and may be replaced at a minimum cost.

The invention consists of the novel features, details of construction and combination of parts, which hereinafter will be more particularly set forth, illustrated in the accompanying drawings, and pointed out in the appended claim.

Referring to the drawings, forming a part of the specification, Figure 1 is a side view of an engine embodying the invention. Fig. 2 is a section on the line 22 of Fig. 3, looking to the right. Fig. 3 is an edge view of the engine having parts broken away.

, Fig. 4 is a sectional detail on the line lt of Fig. 1, looking to the right.

Corresponding and like parts are referred to in the following description, and indicated in all the views of the drawings, by the same reference characters.

The engine embodies a frame 1 which is of annular form and mounted upon a base 2, which in turn is secured to a bed 3 or other foundation. A number of cylinders 4- are grouped about the frame 1 and have a radial arrangement and are disposed equidistant, said cylinders being closed at their outer ends and open at their inner ends and secured to the frame 1 in any substantial way. Each of the cylinders has an outer flange 5 at its outer end, which is engaged by the hooked ends of a yoke 6, the latter having a centrally disposed threaded opening to receive a set screw 7 by means of which a plate 8 is forced close upon the outer end of the cylinder to close the same. A packing 9 is interposed between the plate 8 and the outer end of the cylinder to insure Specification of Letters Patent.

Application filed January 18, 1911.

Patented July 11, 1911. Serial No. 603,329.

hence the pistons connected to the crankport-ion thereof occupy different relative positions in their cylinders, thereby preventing the engine stopping on a dead center. A pulley 1 1 secured to the crank shaft 10 serves the double purpose of a fly wheel and as means for taking off power from the engine.

A cylindrical casing 15 is connected near one end with the outer end of each of the cylinders 4:, said cylindrical casings consisting of short lengths of pipe which are open at their inner ends and closed at their outer ends by means of plugs 16. Piston valves 17 are arranged to operate in the cylindrical casings 15 and control the supply of motive medium to the cylinders and the exhaust of such medium after its power has been expended. The piston valves 17 operate through the inner ends of the casings 15 and are connected by pitmen 18 with pinions 19 mounted upon a plate or disk 20 having a concentric arrangement with the crank shaft 10. The pinions 19 are disposed equidistant about the crank shaft and mesh with a master pinion 21 secured to the crank shaft, said master pinion having a hub provided with a set screw, which latter serves to secure the pinion to the crank shaft in the required position. The plate or disk 20 is loose upon the crank shaft and is adapted to be turned so as to change the relative position of the pinions 19 so as to control the time of admitting the motive medium into the cylinders according to the result to be effected. An arm 22 projects from the disk or plate 20 and is connected by means of a rod 23 with an operating lever 21, which is mounted upon a toothed segment 25 forming part of one of the side bars in which the crank shaft 10 is mounted. This construction admits of turning the plate or disk 20 and securing the same in the adjusted position. A cross pipe 26 is located near the outer end of each of the cylindrical casings L medium supply.

15 and has its inner end connected with the outer portion of a cylinder 1. A supply pipe 27 connects the outer ends of the cross pipes 26 and leads from a source of motive The piston valves 17 are adapted to interrupt the passage through the cross pipes 26 and thereby shut off a supply of motive medium to the cylinders at the proper time. Each of the piston valves has a portion cut from its inside, as indicated at 28, to form an exhaust passage forthe escape of the motive medium after its power has been. expended. A hollow projection is provided upon each of the cylindrical casings 15 near its inner end and an exhaust pipe 30 is connected thereto, said exhaust pipe making connection, with a chamber 31 to which a pipe 32 connects for carrying off the exhaust to the. required point of discharge.

In the operation of the engine motive medium is supplied to the pipe 27 from a suitable source, the supply being admitted into the cylinders 4 at the proper time by means of the piston valves 17 and. the spent medium exhausted from said, cylinders by means of the piston valves and the exhaust passages 28 formed in a side thereof. The pistons are driven in successive order and as the crank shaft rotates the piston valves 17 are operated by means of the pinions 19 and 21. By operating the lever 2 1 the relative position of the piston valves 17 may be changed so as to control the speed and power of the engine to meet certain conditions.

From the foregoing description, taken in connection with the accompanying drawings, the advantages of the construction and of the method of operation will be readily apparent to those skilled in the art to which the invention appertains, and while I have described the principle of operation of the the cylinders and having connection with the crank portion of the crank shaft, a

master pinion secured to the crankshaft and rotatable therewith, a plate mounted concentric with the crank shaft, a plurality of pinions mounted upon the plate and in mesh with the master pinion, means for moving the plate and securing the same in the. required adjusted position, a plurality of casings located. at one side of the cylinders, cross pipes connecting the respectivev casings at a point midway of their ends with the outer ends of the respective cylinders, a supply pipe connecting the outer ends of the cross pipes, an exhaust pipe having connection with the casings near their inner ends, piston valves arranged to operate in the said casings across the said cross pipes and adapted to alternately establish communication: between said cross pipes and the exhaust pipe, and pitmen connecting the piston valves withthe said pinions mounted upon the adjustable plate.

In testimony whereof I affix my signature in. presence of two witnesses.

ORR'EN E. OSBURN.

Witnesses D. D. HAIL, S. MoRRIs.

Copies of this patent may be obtained for five cents each, by addressing the. Commissioner of Patents, Washington, D. G. 

